Files
pezkuwi-subxt/substrate/frame/contracts/fixtures/caller_contract.wat
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Alexander Theißen 330484bb19 contracts: Don't rely on reserved balances keeping an account alive (#13369)
* Move storage deposits to their own account

* Take ed for contract's account from origin

* Apply suggestions from code review

Co-authored-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

* Update stale docs

* Use 16 bytes prefix for address derivation

* Update frame/contracts/src/address.rs

Co-authored-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

* Fix merge

* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_contracts

* Update frame/contracts/primitives/src/lib.rs

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

---------

Co-authored-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>
Co-authored-by: command-bot <>
2023-02-16 15:58:28 +00:00

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(module
(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
(import "seal0" "seal_balance" (func $seal_balance (param i32 i32)))
(import "seal0" "seal_call" (func $seal_call (param i32 i32 i64 i32 i32 i32 i32 i32 i32) (result i32)))
(import "seal0" "seal_instantiate" (func $seal_instantiate
(param i32 i32 i64 i32 i32 i32 i32 i32 i32 i32 i32 i32 i32) (result i32)
))
(import "env" "memory" (memory 1 1))
(func $assert (param i32)
(block $ok
(br_if $ok
(get_local 0)
)
(unreachable)
)
)
(func (export "deploy"))
(func (export "call")
(local $sp i32)
(local $exit_code i32)
;; Length of the buffer
(i32.store (i32.const 20) (i32.const 32))
;; Copy input to this contracts memory
(call $seal_input (i32.const 24) (i32.const 20))
;; Input data is the code hash of the contract to be deployed.
(call $assert
(i32.eq
(i32.load (i32.const 20))
(i32.const 32)
)
)
;; Read current balance into local variable.
(set_local $sp (i32.const 1024))
;; Fail to deploy the contract since it returns a non-zero exit status.
(set_local $exit_code
(call $seal_instantiate
(i32.const 24) ;; Pointer to the code hash.
(i32.const 32) ;; Length of the code hash.
(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 9) ;; Pointer to input data buffer address
(i32.const 7) ;; Length of input data buffer
(i32.const 4294967295) ;; u32 max sentinel value: do not copy address
(i32.const 0) ;; Length is ignored in this case
(i32.const 4294967295) ;; u32 max sentinel value: do not copy output
(i32.const 0) ;; Length is ignored in this case
(i32.const 0) ;; salt_ptr
(i32.const 0) ;; salt_le
)
)
;; Check non-zero exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 2)) ;; ReturnCode::CalleeReverted
)
;; Fail to deploy the contract due to insufficient gas.
(set_local $exit_code
(call $seal_instantiate
(i32.const 24) ;; Pointer to the code hash.
(i32.const 32) ;; Length of the code hash.
(i64.const 1) ;; Supply too little gas
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 8) ;; Pointer to input data buffer address
(i32.const 8) ;; Length of input data buffer
(i32.const 4294967295) ;; u32 max sentinel value: do not copy address
(i32.const 0) ;; Length is ignored in this case
(i32.const 4294967295) ;; u32 max sentinel value: do not copy output
(i32.const 0) ;; Length is ignored in this case
(i32.const 0) ;; salt_ptr
(i32.const 0) ;; salt_le
)
)
;; Check for special trap exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 1)) ;; ReturnCode::CalleeTrapped
)
;; Length of the output buffer
(i32.store
(i32.sub (get_local $sp) (i32.const 4))
(i32.const 256)
)
;; Deploy the contract successfully.
(set_local $exit_code
(call $seal_instantiate
(i32.const 24) ;; Pointer to the code hash.
(i32.const 32) ;; Length of the code hash.
(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 8) ;; Pointer to input data buffer address
(i32.const 8) ;; Length of input data buffer
(i32.const 16) ;; Pointer to the address output buffer
(i32.sub (get_local $sp) (i32.const 4)) ;; Pointer to the address buffer length
(i32.const 4294967295) ;; u32 max sentinel value: do not copy output
(i32.const 0) ;; Length is ignored in this case
(i32.const 0) ;; salt_ptr
(i32.const 0) ;; salt_le
)
)
;; Check for success exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 0)) ;; ReturnCode::Success
)
;; Check that address has the expected length
(call $assert
(i32.eq (i32.load (i32.sub (get_local $sp) (i32.const 4))) (i32.const 32))
)
;; Zero out destination buffer of output
(i32.store
(i32.sub (get_local $sp) (i32.const 4))
(i32.const 0)
)
;; Length of the output buffer
(i32.store
(i32.sub (get_local $sp) (i32.const 8))
(i32.const 4)
)
;; Call the new contract and expect it to return failing exit code.
(set_local $exit_code
(call $seal_call
(i32.const 16) ;; Pointer to "callee" address.
(i32.const 32) ;; Length of "callee" address.
(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 9) ;; Pointer to input data buffer address
(i32.const 7) ;; Length of input data buffer
(i32.sub (get_local $sp) (i32.const 4)) ;; Ptr to output buffer
(i32.sub (get_local $sp) (i32.const 8)) ;; Ptr to output buffer len
)
)
;; Check non-zero exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 2)) ;; ReturnCode::CalleeReverted
)
;; Check that output buffer contains the expected return data.
(call $assert
(i32.eq (i32.load (i32.sub (get_local $sp) (i32.const 8))) (i32.const 3))
)
(call $assert
(i32.eq
(i32.load (i32.sub (get_local $sp) (i32.const 4)))
(i32.const 0x00776655)
)
)
;; Fail to call the contract due to insufficient gas.
(set_local $exit_code
(call $seal_call
(i32.const 16) ;; Pointer to "callee" address.
(i32.const 32) ;; Length of "callee" address.
(i64.const 1) ;; Supply too little gas
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 8) ;; Pointer to input data buffer address
(i32.const 8) ;; Length of input data buffer
(i32.const 4294967295) ;; u32 max sentinel value: do not copy output
(i32.const 0) ;; Length is ignored in this cas
)
)
;; Check for special trap exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 1)) ;; ReturnCode::CalleeTrapped
)
;; Zero out destination buffer of output
(i32.store
(i32.sub (get_local $sp) (i32.const 4))
(i32.const 0)
)
;; Length of the output buffer
(i32.store
(i32.sub (get_local $sp) (i32.const 8))
(i32.const 4)
)
;; Call the contract successfully.
(set_local $exit_code
(call $seal_call
(i32.const 16) ;; Pointer to "callee" address.
(i32.const 32) ;; Length of "callee" address.
(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
(i32.const 0) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer.
(i32.const 8) ;; Pointer to input data buffer address
(i32.const 8) ;; Length of input data buffer
(i32.sub (get_local $sp) (i32.const 4)) ;; Ptr to output buffer
(i32.sub (get_local $sp) (i32.const 8)) ;; Ptr to output buffer len
)
)
;; Check for success exit status.
(call $assert
(i32.eq (get_local $exit_code) (i32.const 0)) ;; ReturnCode::Success
)
;; Check that the output buffer contains the expected return data.
(call $assert
(i32.eq (i32.load (i32.sub (get_local $sp) (i32.const 8))) (i32.const 4))
)
(call $assert
(i32.eq
(i32.load (i32.sub (get_local $sp) (i32.const 4)))
(i32.const 0x77665544)
)
)
)
(data (i32.const 0) "\00\80") ;; The value to transfer on instantiation and calls.
;; Chosen to be greater than existential deposit.
(data (i32.const 8) "\00\01\22\33\44\55\66\77") ;; The input data to instantiations and calls.
)